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- Path: sparky!uunet!sun-barr!ames!purdue!yuma!va655217
- From: va655217@LANCE.ColoState.Edu (venkata ramana annadata)
- Newsgroups: comp.graphics
- Subject: HIDDEN LINE/SURFACE ELIMINATION
- Message-ID: <Sep02.190531.77805@yuma.ACNS.ColoState.EDU>
- Date: 2 Sep 92 19:05:31 GMT
- References: <jester.713904126@crash> <1992Aug24.110646.25342@ppgfr.uucp>
- Sender: news@yuma.ACNS.ColoState.EDU (News Account)
- Organization: Colorado State U. Engineering College
- Lines: 39
-
- Hi,
-
- I am looking for some software(freeware or payware) on Hidden Line Elimination,
- to handle a large volume of data about (50000 primitives). I shall also
- appreciate if I could get some pointers to recent developments and alogorithms
- in this area to handle such data.
-
- To elaborate, this is my situation:
-
- 1). I have all of my primitives (all are polyhedrons) in the form of
- full_winged_edge_data_structures (Lincloln_face_models). In other
- words I have all the connectivity information such as edge-to-edge,
- edge-to-face, edge-to-vertex, vertex-to-vertex, vertex-to-face,
- face-to-face and vice_versa, and also the normals of each bounding
- face and so on. Like by this connectivity for example, given an edge
- I can yank out its end_points, the edges shared by these two end_points
- and the two faces that this edge seperates and the edges that bound these
- two faces and so on.
-
- 2). Also the volume of data that I have to handle is very large, like to
- the extent of about 30,000 - 50,000 polyhedrons.
-
- Since I have so much of the geometrical and topological information
- at hand I was wondering if there is any alogrithm out there which
- making use of the available information reduce further computation
- to the least.
- Any algorithm or idea that you may have would help me, atleast in
- developing one of my own.
-
- If u had developed/involved in a hidden line elimination for vast
- data your comments and advice shall be well appreciated.
-
- Thanks in advance.
-
- Ramana Annadata.
- Thanks,
-
- Ramana
-
-